Fax API

Programmatic fax sending without telephony plumbing.

AgentFax wraps upstream fax infrastructure behind a direct REST API. Developers get JSON requests, normalized status, retry-safe sends, and Stripe-backed account provisioning.

What the API handles

Authentication, request validation, idempotency, provider submission, local event history, and webhook intake.

What customers send

Recipient number, sender override when needed, a document URL or provider media name, and optional metadata.

POST /v1/faxes
{
  "to": "+13125550123",
  "media_url": "https://example.com/packet.pdf",
  "quality": "high"
}